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* [skip-ci][Maps] Improve Maps intro page * review feedback * trim list to 7 items, add link to getting started guide, change all references to app to Elastic Maps * review feedback * bold Elastic Maps in intro page
70 lines
2.6 KiB
Text
70 lines
2.6 KiB
Text
[role="xpack"]
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[[maps-search]]
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== Searching your data
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**Elastic Maps** embeds the query bar for real-time ad hoc search.
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Only layers requesting data from {es} are filtered when you submit a search request.
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You can create a layer that requests data from {es} from the following:
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* <<vector-layer>> with:
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** Documents source
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** Grid aggregation source
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** <<terms-join>>
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* <<heatmap-layer>> with Grid aggregation source
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[role="screenshot"]
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image::maps/images/global_search_bar.png[]
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[role="xpack"]
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[[maps-layer-based-filtering]]
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=== Filtering a single layer
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You can apply a search request to individual layers by setting `Filters` in the layer details panel.
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Click the *Add filter* button to add a filter to a layer.
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NOTE: Layer filters are not applied to *term joins*. You can apply a search request to *term joins* by setting the *where* clause in the join definition.
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[role="screenshot"]
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image::maps/images/layer_search.png[]
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[role="xpack"]
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[[maps-search-across-multiple-indices]]
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=== Searching across multiple indices
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Your map might contain multiple {es} indices.
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This can occur when your map contains two or more layers with {es} sources from different indices.
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This can also occur with a single layer with an {es} source and a <<terms-join>>.
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Searching across multiple indices might sometimes result in empty layers.
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The most common cause for empty layers are searches for a field that exists in one index, but does not exist in other indices.
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Add {ref}/mapping-index-field.html[_index] to your search to include documents from indices that do not contain a search field.
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For example, suppose you have a vector layer showing the `kibana_sample_data_logs` documents
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and another vector layer with `kibana_sample_data_flights` documents.
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(See <<add-sample-data, adding sample data>>
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to install the `kibana_sample_data_logs` and `kibana_sample_data_flights` indices.)
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If you query for
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--------------------------------------------------
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machine.os.keyword : "osx"
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--------------------------------------------------
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the `kibana_sample_data_flights` layer is empty because the index
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`kibana_sample_data_flights` does not contain the field `machine.os.keyword` and no documents match the query.
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[role="screenshot"]
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image::maps/images/global_search_multiple_indices_query1.png[]
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If you instead query for
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--------------------------------------------------
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machine.os.keyword : "osx" or _index : "kibana_sample_data_flights"
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--------------------------------------------------
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the `kibana_sample_data_flights` layer includes data.
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[role="screenshot"]
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image::maps/images/global_search_multiple_indices_query2.png[]
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